Surface Tension of Water by Capillary Rise and Effect of Detergents NEET Questions

Physics - Experimental Skills

Surface Tension of Water by Capillary Rise and Effect of Detergents MCQ Questions


13.
Adding detergent to water will:
A.
Increase surface tension
B.
Decrease surface tension
C.
Have no effect
D.
Depends on concentration
😑 View Answer Rough Work Error
ANSWER :
B. Decrease surface tension
14.
Which of the following increases when detergents are added to water?

NEET - 2018

A.
Surface tension
B.
Viscosity
C.
Capillary rise
D.
Specific gravity
😑 View Answer Rough Work Error
ANSWER :
C. Capillary rise
15.
The contact angle of pure water on a clean glass surface is approximately:
A.
0°
B.
30°
C.
60°
D.
90°
😑 View Answer Rough Work Error
ANSWER :
A. 0°
16.
If the radius of a capillary tube is halved, the height of the liquid column will:
A.
Remain the same
B.
Double
C.
Halve
D.
Increase four times
😑 View Answer Rough Work Error
ANSWER :
D. Increase four times
17.
In capillary rise, the height of the liquid column is inversely proportional to:

NEET - 2019

A.
Radius of the tube
B.
Density of the liquid
C.
Surface tension
D.
None of the above
😑 View Answer Rough Work Error
ANSWER :
A. Radius of the tube
18.
Which force is responsible for surface tension?
A.
Cohesive force
B.
Adhesive force
C.
Gravitational force
D.
Electrostatic force
😑 View Answer Rough Work Error
ANSWER :
A. Cohesive force